单项选择题
A.camshaft
B.flywheel
C.crankshaft
D.thrust shaft
单项选择题 A diesel engine is operating at 1800 RPM and driving a propeller at 600 RPMWhat is the speed reduction ratio?()
单项选择题 High diesel engine cooling water temperatures can be caused by ().
单项选择题 The rotary motion of a diesel engine crankshaft is obtained from the up and down motion of the piston via the ().